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File Content: `GetSetMethodNormalizer.php`

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Serializer\Normalizer;

use Symfony\Component\Serializer\Exception\InvalidArgumentException;
use Symfony\Component\Serializer\Exception\RuntimeException;

/**
 * Converts between objects with getter and setter methods and arrays.
 *
 * The normalization process looks at all public methods and calls the ones
 * which have a name starting with get and take no parameters. The result is a
 * map from property names (method name stripped of the get prefix and converted
 * to lower case) to property values. Property values are normalized through the
 * serializer.
 *
 * The denormalization first looks at the constructor of the given class to see
 * if any of the parameters have the same name as one of the properties. The
 * constructor is then called with all parameters or an exception is thrown if
 * any required parameters were not present as properties. Then the denormalizer
 * walks through the given map of property names to property values to see if a
 * setter method exists for any of the properties. If a setter exists it is
 * called with the property value. No automatic denormalization of the value
 * takes place.
 *
 * @author Nils Adermann <naderman@naderman.de>
 */
class GetSetMethodNormalizer extends SerializerAwareNormalizer implements NormalizerInterface, DenormalizerInterface
{
    protected $callbacks = array();
    protected $ignoredAttributes = array();
    protected $camelizedAttributes = array();

    /**
     * Set normalization callbacks.
     *
     * @param callable[] $callbacks help normalize the result
     *
     * @throws InvalidArgumentException if a non-callable callback is set
     */
    public function setCallbacks(array $callbacks)
    {
        foreach ($callbacks as $attribute => $callback) {
            if (!is_callable($callback)) {
                throw new InvalidArgumentException(sprintf('The given callback for attribute "%s" is not callable.', $attribute));
            }
        }
        $this->callbacks = $callbacks;
    }

    /**
     * Set ignored attributes for normalization
     *
     * @param array $ignoredAttributes
     */
    public function setIgnoredAttributes(array $ignoredAttributes)
    {
        $this->ignoredAttributes = $ignoredAttributes;
    }

    /**
     * Set attributes to be camelized on denormalize
     *
     * @param array $camelizedAttributes
     */
    public function setCamelizedAttributes(array $camelizedAttributes)
    {
        $this->camelizedAttributes = $camelizedAttributes;
    }

    /**
     * {@inheritdoc}
     */
    public function normalize($object, $format = null, array $context = array())
    {
        $reflectionObject = new \ReflectionObject($object);
        $reflectionMethods = $reflectionObject->getMethods(\ReflectionMethod::IS_PUBLIC);

        $attributes = array();
        foreach ($reflectionMethods as $method) {
            if ($this->isGetMethod($method)) {
                $attributeName = lcfirst(substr($method->name, 3));

                if (in_array($attributeName, $this->ignoredAttributes)) {
                    continue;
                }

                $attributeValue = $method->invoke($object);
                if (array_key_exists($attributeName, $this->callbacks)) {
                    $attributeValue = call_user_func($this->callbacks[$attributeName], $attributeValue);
                }
                if (null !== $attributeValue && !is_scalar($attributeValue)) {
                    if (!$this->serializer instanceof NormalizerInterface) {
                        throw new \LogicException(sprintf('Cannot normalize attribute "%s" because injected serializer is not a normalizer', $attributeName));
                    }
                    $attributeValue = $this->serializer->normalize($attributeValue, $format);
                }

                $attributes[$attributeName] = $attributeValue;
            }
        }

        return $attributes;
    }

    /**
     * {@inheritdoc}
     */
    public function denormalize($data, $class, $format = null, array $context = array())
    {
        $reflectionClass = new \ReflectionClass($class);
        $constructor = $reflectionClass->getConstructor();

        if ($constructor) {
            $constructorParameters = $constructor->getParameters();

            $params = array();
            foreach ($constructorParameters as $constructorParameter) {
                $paramName = lcfirst($this->formatAttribute($constructorParameter->name));

                if (isset($data[$paramName])) {
                    $params[] = $data[$paramName];
                    // don't run set for a parameter passed to the constructor
                    unset($data[$paramName]);
                } elseif (!$constructorParameter->isOptional()) {
                    throw new RuntimeException(
                        'Cannot create an instance of '.$class.
                        ' from serialized data because its constructor requires '.
                        'parameter "'.$constructorParameter->name.
                        '" to be present.');
                }
            }

            $object = $reflectionClass->newInstanceArgs($params);
        } else {
            $object = new $class;
        }

        foreach ($data as $attribute => $value) {
            $setter = 'set'.$this->formatAttribute($attribute);

            if (method_exists($object, $setter)) {
                $object->$setter($value);
            }
        }

        return $object;
    }

    /**
     * Format attribute name to access parameters or methods
     * As option, if attribute name is found on camelizedAttributes array
     * returns attribute name in camelcase format
     *
     * @param string $attributeName
     * @return string
     */
    protected function formatAttribute($attributeName)
    {
        if (in_array($attributeName, $this->camelizedAttributes)) {
            return preg_replace_callback(
                '/(^|_|\.)+(.)/', function ($match) {
                    return ('.' === $match[1] ? '_' : '').strtoupper($match[2]);
                }, $attributeName
            );
        }

        return $attributeName;
    }

    /**
     * {@inheritDoc}
     */
    public function supportsNormalization($data, $format = null)
    {
        return is_object($data) && $this->supports(get_class($data));
    }

    /**
     * {@inheritDoc}
     */
    public function supportsDenormalization($data, $type, $format = null)
    {
        return $this->supports($type);
    }

    /**
     * Checks if the given class has any get{Property} method.
     *
     * @param string $class
     *
     * @return Boolean
     */
    private function supports($class)
    {
        $class = new \ReflectionClass($class);
        $methods = $class->getMethods(\ReflectionMethod::IS_PUBLIC);
        foreach ($methods as $method) {
            if ($this->isGetMethod($method)) {
                return true;
            }
        }

        return false;
    }

    /**
     * Checks if a method's name is get.* and can be called without parameters.
     *
     * @param \ReflectionMethod $method the method to check
     *
     * @return Boolean whether the method is a getter.
     */
    private function isGetMethod(\ReflectionMethod $method)
    {
        return (
            0 === strpos($method->name, 'get') &&
            3 < strlen($method->name) &&
            0 === $method->getNumberOfRequiredParameters()
        );
    }
}
Name	Size	Permission
CustomNormalizer.php	1878 bytes	0644
DenormalizableInterface.php	1422 bytes	0644
DenormalizerInterface.php	1299 bytes	0644
GetSetMethodNormalizer.php	7724 bytes	0644
NormalizableInterface.php	1338 bytes	0644
NormalizerInterface.php	1145 bytes	0644
SerializerAwareNormalizer.php	821 bytes	0644
File Content: GetSetMethodNormalizer.php

File Content: `GetSetMethodNormalizer.php`
